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DOI | 10.1039/d0ee02999h |
Zinc/selenium conversion battery: A system highly compatible with both organic and aqueous electrolytes | |
Chen Z.; Mo F.; Wang T.![]() | |
发表日期 | 2021 |
ISSN | 17545692 |
起始页码 | 2441 |
结束页码 | 2450 |
卷号 | 14期号:4 |
英文摘要 | Zinc ion batteries (ZIBs) typically work well in aqueous electrolytes. Most high-performance cathode materials of aqueous ZIBs exhibit much-deteriorated capacity, voltage plateau and rate capability in organic electrolytes. It remains a challenge to have a Zn battery that is highly compatible with both aqueous and organic electrolytes. Herein, a conversion-type Zn-Se battery is constructed, which delivers a superior performance in both organic and aqueous electrolytes benefiting from a highly reversible conversion reaction between Se and ZnSe. Extraordinary capacities in organic systems (551 mA h gSe-1) and aqueous systems (611 mA h gSe-1) were successfully achieved, accompanied by a remarkable rate performance and cycling performance in each of the two systems. In addition, very low voltage plateau slopes, 0.94 V/(A h g-1) and 0.61 V/(A h g-1), are obtained for organic and aqueous systems, respectively, due to the advanced conversion mechanism. These unique features equip these Zn-Se batteries with unprecedented energy densities of up to 581 W h kgSe-1 (290 W h kgSe/CMK-3-1) for the organic system and 751 W h kgSe-1 (375 W h kgSe/CMK-3-1) for the aqueous system. Our research has developed a new Zn battery chemistry that benefits from a conversion mechanism and is highly compatible with both organic and aqueous electrolytes, opening a door for zinc batteries to achieve a higher energy density and better compatibility with various electrolytes. This journal is © The Royal Society of Chemistry. |
英文关键词 | Cathodes; Electrolytes; II-VI semiconductors; Secondary batteries; Zinc; Zinc Selenide; Aqueous electrolyte; Battery chemistries; Conversion mechanism; Conversion reactions; Cycling performance; Higher energy density; Organic electrolyte; Rate capabilities; Selenium compounds; aqueous solution; electrolyte; selenium; zinc |
语种 | 英语 |
来源期刊 | Energy & Environmental Science |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/190726 |
作者单位 | Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 999077, Hong Kong; Centre for Functional Photonics, City University of Hong Kong, Kowloon, Hong Kong |
推荐引用方式 GB/T 7714 | Chen Z.,Mo F.,Wang T.,et al. Zinc/selenium conversion battery: A system highly compatible with both organic and aqueous electrolytes[J],2021,14(4). |
APA | Chen Z..,Mo F..,Wang T..,Yang Q..,Huang Z..,...&Zhi C..(2021).Zinc/selenium conversion battery: A system highly compatible with both organic and aqueous electrolytes.Energy & Environmental Science,14(4). |
MLA | Chen Z.,et al."Zinc/selenium conversion battery: A system highly compatible with both organic and aqueous electrolytes".Energy & Environmental Science 14.4(2021). |
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